Bruno, MyCat and Rutra, thank you for helping me with this.  I appreciate all feedback.

So size does matter? ;)  Rutra, I had not tried that but I just did and it worked wonderfully.  First I brought in a standard terrain, the resolution and it worked.  Then I brought in a procedural and upped the resolution and it worked as well.  Thank you for the suggestion.

The swapping works for the green and blue but it was the red that gave me fits.  I thought I heard Vlad say the word 'swap' but I replayed it over and over and really couldn't understand what he said.  The red doesn't matter anymore as I applied materials to zones where needed and got a very nice material.  It does change the way it looks depending on which terrain it is on but perhaps that is due to the fact I didn't change it to object parametric.  I don't know for sure.

Thanks again for the help.